"Acoustics – Laborato " CNS Standards Search Result

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	CNS 15256 - English Version Acoustics – Laboratory measurement procedures for ducted silencers and air-terminal units – Insertion loss, flow noise and total pressure loss 聲學－風管消音箱及空氣終端單元之實驗室量測程序－插入損失、氣流噪音及總壓力損失 - 英文版

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